This error message might be related to surveys that are already deleted from ArcGIS Online or Survey123 site. Before uploading your surveys from your mobile device, can you please double check that the surveys still exist in Survey123 site?

Thank you for the prompt reply. They surveys do still exist. We have a crew of about 10 people and only 1 team member is experiencing the issue I describe above all other members are successfully syncing their surveys. Any other thoughts?

It is possible that this specific user might have an older version of the survey with the same name on the device. Does the issue happen for this user for multiple downloaded surveys? Did you by any chance deleted and republished, or modified the survey after this user already downloaded it to the device and collected data? For a quick test, have that user download that specific survey once again and see if they can send the survey data.

Do you know what version of the Survey123 app these users are on? The latest version is 1.1.18.

If the user is able to download the same survey again (without deleting the one on the device), this might indicate that there were some changes on the survey or the associated feature service. In this case, the user will have two surveys on the device with the same name. However, you can tell the difference between those surveys as you can see below:

Thank you for the reply. I am unsure of versioning. I believe it was installed on the devices early this week (likely 1.1.16). it appears as though an update has been 'pushed' to my device (i'm not sure about the field crews) last night November 17 and my own device is now running 1.1.18. Could that be a problem?

I'll tell them to try and redownload the surveys...Any other suggestions? what about the token error?

I was able to follow up with the field crews last night. The gentleman who is experiencing the upload problem does in fact have an out-dated version of the survey. Is there anyway to get the content off his device now that the feature service and associated survey123 content on the web has been deleted. Any help is much appreciated.